mano
/ˈmano/ · A1 · noun · f
hand
✋ mano → manual, manicure, manuscript: all from Latin manus, hand
English already holds this root: manual work is done by hand, a manicure cares for the hand, a manuscript is written by hand. Note the trap: mano ends in -o but is feminine, so it is la mano, because Latin manus was feminine too.